Properties of Wire Insulations

Material	Nom. Specific Gravity	Voltage Breakdown (Volts/Mil)	Abrasion Resistance	Nom. Dielec. Constant	Flame Retardant Properties	Flexibility
Polyvinyl Chloride (PVC)	1.37	500	Good	5-8	Excellent	Good
Polyethylene - Solid	0.95	600	Good	2.1	Poor	Fair
Polyethylene - Foam	0.50	n/a	Poor	1.5	Poor	Good
Teflon® (FEP)	2.20	600	Excellent	2.1	Excellent	Fair
Teflon® (PFA)	2.14	2,000	Excellent	2.0	Excellent	Fair
Tefzel™	1.70	400	Excellent	2.7	Excellent	Fair
Nylon	1.07	450	Excellent	4.0	Poor	Poor
Polypropylene	0.91	650	Excellent	2.2	Poor	Poor
Polyurethane	1.10	500	Excellent	7.0	Poor	Excellent
Thermoplastic Elastomer (TPE)	1.00	650	Excellent	2.4	Good	Good
Hytrel™	1.20	860	Excellent	6.0	Fair	Fair
Silicone	1.32	600	Fair	3.0	Fair	Excellent
Fluorosilicone	1.40	350	Excellent	7.0	Excellent	Excellent

Material	Weather- ability	Nom. Temp. Range °C	Alcoholglycol	Gasoline	Trichloro- ethylene
Polyvinyl Chloride (PVC)	Excellent	-55° - 105°	Poor	Poor	Fair
Polyethylene - Solid	Excellent	-60° - 80°	Good	Good	Good
Polyethylene - Foam	Excellent	-60° - 80°	Poor	Poor	Poor
Teflon® (FEP)	Excellent	-70° - 200°	Excellent	Excellent	Excellent
Teflon® (PFA)	Excellent	-70° - 260°	Excellent	Excellent	Excellent
Tefzel™	Excellent	-70° - 150°	Excellent	Excellent	Excellent
Nylon	Excellent	-40° - 120°	Excellent	Good	Excellent
Polypropylene	Excellent	-40° - 105°	Good	Good	Good
Polyurethane	Excellent	-50° - 80°	Good	Good	Good
Thermoplastic Elastomer (TPE)	Excellent	-75° - 140°	Fair	Poor	Fair
Hytrel™	Excellent	-50° - 105°	Good	Good	Good
Silicone	Excellent	-65° - 200°	Good	Good	Fair
Fluorosilicone	Excellent	-60° - 200°	Excellent	Excellent	Excellent

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